Overview
Baby can open and close their eyes and may follow light. Week 30 often makes the final trimester feel unmistakably real, with stronger movements, more body awareness, and growing curiosity about labour.
Third Trimester · Weeks 28–42
Week 30 Pregnancy
Baby can open and close their eyes and may follow light.
About the size of a cucumber3 min read10 sections
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Baby Development
The baby can open and close the eyes, respond to light, and continue refining the lungs and brain at a rapid pace. Fat layers are building steadily, making the body look fuller and more newborn-like.
Baby Size
A playful size comparison for this week is cucumber. That cucumber-sized baby is practicing alertness, sleep cycles, and stronger stretching movements now.
Mother's Body Changes
Your ribs may feel more crowded, your pelvis may feel heavier, and you may need more effort to find a comfortable sleeping position. Some people also notice their belly tightening briefly during active days.
Common Symptoms
Week 30 can bring rolling movements, heartburn, breathlessness, backache, insomnia, and Braxton Hicks. Swollen feet and a need to pee more often at night are also common companions.
Nutrition Tips
Think about foods that are both nourishing and easy to tolerate in smaller portions, because heartburn can make giant meals a bad trade. Protein, calcium, iron, and hydration still matter every day, even when appetite is inconsistent.
Exercise & Movement
Gentle movement remains helpful for circulation, mood, and stiffness, but the right dose is often smaller now. Walking, pelvic tilts, and breathing-focused stretching usually fit better than anything jarring or exhausting.
Emotional Wellbeing
You may be thinking more about labour, birth setting, and what coping will feel like. Curiosity and nervousness often grow together around week 30.
Partner Support
Partners can support by talking through birth preferences without needing every detail settled immediately. Calm conversations now can make later decisions feel less loaded.
Warning Signs
Urgent warning signs this week include heavy bleeding, severe abdominal pain, fever, fainting, leaking fluid, or a severe headache with vision changes. Get checked for regular contractions, bleeding, leaking fluid, severe headache, or a change in movement that feels unusual for your baby. From week 28 onward, contact your care team promptly if the baby's usual movements slow down, weaken, or stop.
Frequently Asked Questions
Many parents notice movement more clearly when they are finally still, and babies often have active periods in the evening. That pattern can be completely normal.
ParentVibes Tip
Practise relaxation and breathing techniques for later. Practising simple breathing or relaxation techniques now can make them feel more familiar if labour starts to occupy your mind.
Continue your journey
Explore the full third trimester guide.
ParentVibes offers general information, not medical advice. Always follow your doctor or midwife.